leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ALSA: usb-audio: Don't set altsetting before initializing sample rate

Browse Source 
Setting the active altsetting at changing sample rate seems
unrecommended.  The host should deselect the altsetting at first
before that, then select it again.

Tested-by: Keith Milner <kamilner@superlative.org>
Tested-by: Dylan Robinson <dylan_robinson@motu.com>
Link: https://lore.kernel.org/r/20201123085347.19667-18-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2020-11-23 09:53:23 +01:00
parent e42a09bc52
commit c7f902015e
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
sound/usb/stream.c
View File

@ -1223,9 +1223,10 @@ static int __snd_usb_parse_audio_interface(struct snd_usb_audio *chip,
}
/* try to set the interface... */
usb_set_interface(chip->dev, iface_no, altno);
usb_set_interface(chip->dev, iface_no, 0);
snd_usb_init_pitch(chip, iface_no, alts, fp);
snd_usb_init_sample_rate(chip, iface_no, alts, fp, fp->rate_max);
usb_set_interface(chip->dev, iface_no, altno);
}
return 0;
}